GenerateSTL, a workshop for printable mechanical parts

Field notes

The site exposes mechanical parameters rather than presenting fixed model downloads: gear module, tooth count, pressure angle, profile shift, helix angle, and bore can be tuned before export. It says each binary STL stores its recipe in the header, allowing an older file to be reopened with its settings intact. The page also describes checks for fragile teeth and impossible bores, plus hex, square, round, and keyway bore options.